Paper-box-making machine



Feb. 23 ,192e. 574,019 s. BERGSTEIN I PAPER BOX MAKING MACHINE Filed Jan. 23, 1925 5 Sheets-Sheet 1 Feb; 23 ,1926. 1,574,019

. 4 5. BERGSTEIN PAPER BOX MAKING MACHINE Filed Jan. 23, 1925 3 Sheets-Sheet 2 ATTORNEY Feb. 23 1926.. 1,574,019

S. BERGSTEIN PAPER BOX MAKING MACHINE Filedflan. 19 3 Sheets-Sheet 5 Patented Feb. 23, 1926.

U-NETED ST AiT annie earner orrrce.

SAMUEL BERGSTEIN, OE MIDDLETDWN, OHIO, ASSIGNGB T9 THE INTERSTATE-FOLD- i ING-I BOX COMPANY, OF MIDDLETOWN, OHIO.

PAPER -BOXJIIAKING MACHINE.

Application filed January T aZZ'wbm n it may concern:

v Be it known that I, SAMUEL BERGSTEIN, a citizen of the United States, residing at Middletown, inthe county of Butler and State of Ohio, have invented certain new and useful Improvements in Paper-lion i machinery is to use ajliquid' glue, or other suitable adhesive, which is appliedto the parts to be joined together to form the box,- 'gressure-being then applied'to effect adhesion between the partsand thus to form the joints ofthe box, 7

More or less difliculty is.experienced with present methods in applying the adhesive in right proportions and properly distributed over the coacting surfaces ofthe partsto be joined together, and also in applyingsufficient pressure and in regulating the pressure applied in the joint forming operation to insure uniformity and dependability of construction.

' The main object sought and attained in my present invention is to vercome both these diiiiculties and at the same time to simplify and cheapen the mechanical apparatus as well as the processes of production necessary to the practice of the invention.

To this end, as herein shown and described, adhesive tape having adhesive on both sides thereof, is usedto form the joi and an apparatus of suitable construction is provided for forming the boxes and'supplyingthe tape as required as the joints are made, the method of operation being either automatic or semiautomatic accordingto the character of the boxes to be made and production capacity of the machine.

The apparatus herein shown and described is for illustration purposes only, and it will be understood that any underlying princlple of invent'ionisset forth and claimed rather than details of the means and IDGtllOLlQlH- ployed for practicing the invention.

In the accompanying drawings, a semiautomatic machine of" simple construction'is 23, 1925. Serial- No. 4,200.

shown for illustrating the principle of the invention as applied in making boxes of a common type, it being understoodthat it is contemplated in the commercial practice or the invention to use any suitable form oi apparatus and to make boxes of variable shapes and sizes thereon.

In the drawings:

Fig. 1 is a vertical sectional view of the machine as shown for illustration purposes;

Fig. 2 is a front end elevation of themachi e;

Fig. 3 is a detail view of the operating mechanism;

Fig. 4 is adetail View in side elevation of the gearing for operating the tape-feeding mechanism Fig. 5 is a detail plan view of the tapetleeding mechanism and the pressure mechanism for forming thejoints in coacting relation one with the other.

As here shown, the box making apparatus consists of a main frame comprising members 1 and 2 which are joined together in any suitable manner, as by means of bolts 0 to form the base of the machine. A nmch'.. table frame 4 is secured to frame members land 2 by means of bolts 5. The tapc-fecdint; mechanism is supported on a frame (3 which is mounted on frame t by means of bolts 7 and 8 operable in slots in frame i in a nianner to provide for horizontal 1 ljustmcnt oi iramezti, together with the mehani' 'ns supported thereon, to adapt the 1 .n to boxes of variable sizes. ()ppcs :urtically extending frames 9 are supported on the The t .i passes from rollers to rollers 16l=, also supported in frame 6, roller 1:? being supported in opposite slotted bearings 18, the same being thus in gravity frictional relation with roller 17.

As here shovi'n, roller 17 is partiu h: ubmerged in water in a container 19 w..ich acts to'keep the'peripheiy of the roller moist and also totransfer moisture to the periphery of rollerlfi which is covered with a suitable absorbent material, as felt. Thus both sides of the adhesive tape will be moistened as the.

ll rom rollers l6ll the severed strips of tape pass to rollers 2223 which are supported on opposite pivoted arms 24 which are centered on the ends of the shaft of roller 16. Rollers 22 -23 act to deliver the tape over the end of the box, shown in dotted outline 25, in position to be interposed between coacting parts of the box as the same are folded to form the joints.

As shown in Figs. 1 and 4, a box form ng head 26 is supported in frame 4 bymeans of a bolt 2? at the front of the machine in a manner similar to frame 6 to adapt the same to be adjusted relative to frame 6 and to be set according to the size of the boxes. It,

is contemplated to use heads 26 of different sizes for difierent size boxes, the heads being adapted to be used interchangeably on the machine. I

A pressure roller 28, supported on a spring-tensioned arm 29, pivoted in swinging arm 10, acts to complete folding of the parts of the boX to be joined together at the joints. the firstfoldings being made, in the use of the apparatus as here shown, by hand as the bones are placed on the head'27 by the operator of the machine. Arm 29 is rocked onrits pivot center in one direction by a spring 30 which acts to exert moderate pressure on roller 28 as the same passes over the end of the box and thus to cause efl'ective adhesion between thejparts that are joined together. 7 A pin stop 31 acts to limit the movement of arm 29 under the tension of spring 30. A handle 32 is provided for rocking frame 10 manually and thus to move roller 28 over the ends of the box,the return movement of the frame being accomplished by means of a tension spring connected to an arm 1O extended on the opposite side of the pivot center 34 of arm 10. A. limit of movement stop 35 acts to regulate the extent of movement of frame 10 on the return stroke of the mechanism. 7

A lever 36 is connected to the pivoted frame 24 in which rollers 22-23 are supported and is adapted to be engaged by a V roller 37 projecting outwardly from one of the arms 10 and thusto be acted upon to raise the rollers out of the path of roller 28 and the folding plane of the end of the box, as the joints are formed,the rollers moving to normal relation by gravity upon completionof the operation.

The operating mechanism for the tape feeding mechanism consists of a vertically reciprocable, compound rack comprising racks 38and- 39 operable as an integral part by means of a treadle 40, connected to the rack by a rod 41, the mechanism being returned on the up stroke by a spring 42.

Rack 38 meshes with a spur gear 43. as

shown in Figs. 4 and 5', gear 43 being part ofa friction clutch comprising the shank 44 of the gear, an intermediate member 45 and the hub'46 of gear 4?. On the down stroke of the rack; gear 43 is actuated in clockwise directiom'thus effecting a friction driving relation between clutch members 44 and 45 and a full clutch driving relation between members 45 and 46. the driving re-.

lation between parts 44and being effected by means of a shoulder 45 on part 45 and cam 44 on part 44. a stop 48' acting to limit the outward axial movement of part 4- and thus to efiect the frictional driving relation between parts 44 and 45. i

Thus 'upon the 7 clockwise movement of gear 43, gear 47 andalso gear 48 androller 14 which are on the same shaft with gear 47, are driven in clockwise direction, roller 13 being rotated in counter-clockwisedirection by a gear 49 meshing with gear 48. thus the tape web will be drawn fromroll 11. 7 An intermediate gear 50 is interposed be tween gear 47 and a gear 51 which is secured. to the shaft of lower roller 1'? ,-thus roller 17 will also be driven in clockwise direction coincident with roller 14, upper roller 16 being driven in counter-clockwise direction by a gear 52 meshing with gear 51,-the web of tape being advanced to an extent equal to the feeding action of rollers 1314 the tape being severed by the knife 20, which is secured. to racks ml-39; at the.

end of the down stroke of the racks, the tape is also moistened on this feedingactio-n as it passes between rollers 1617.

Upper roller 22 is driven in counter-clockwise direction on the down stroke of racks 8839 byan intermediate gear meshing with gear 52 and a gear 54 secured to the shaft of roller 22, driven in clockwise direction by a gear 55 secured to the shaft of roller 23 and mesh ing with gear 54. thus the severed strip of tape will be fed forward half its length, the feeding action of rollers 1S-17 being in ratio to the feeding action of rollers 1314 and 16-17.

On the up stroke of racks 3839, clutch 444546 and also a clutch 51 associated with gears 5151 will be in idle relation and rollers 1314 and 1617 will stand at a lower roller 23 being rest, but rollers 22-23 will again be actuated to feed the tape forward through a gear 56 meshing with rack 39 and a clutch 57 the second half of its length, the tape being delivered between the foldable portions of the box as illustrated in Fig. 4. The driving relation between gear 56 and gear 51 is through clutch 57 and shaft 58 gear 51 being free on shaft 58 independent- 1y of the clutch.

From the foregoing detailed specification and the illustrations of the drawings the novel features of my invention both as to the apparatus and the method of production for practicing the invention will be readily understood. It will be observed that relatively simple mechanism and simple steps of production are characteristics of the invention, and that uniformity of construction, having reference to forming of the joints of the boxes, will result;

It will be obvious, of course, that any suitable width of adhesive tape, and any number of widths may be used as may best suit the size of the boxes and the character of joint to be used; also that tape prepared with adhesive on one or both sides may be used as required to suit the construction of the boxes, that is to say, whether the joints are to be merely sealed externally with tape having adhesive on one side only, or joined together one with another with tape having adhesive on both sides inserted between the folded portions.

The improved box making machine in which adhesive tape is used is much cleaner in operation than machines using a liquid adhesive which are more or less unsanitary due to the spreading of the adhesive over other parts of the mechanism; also the boxes in which the joints are bound together with tape are cleaner at the joints than boxes formed with liquid adhesive because of the fact that there is no excess of adhesive material and therefore no spreading of adhesive over adjacent surfaces of the boxes over parts of the machine.

As far as I am aware, I am the first in the art to which my invention relates to use adhesive tape in any form to form the joints of machine-made paper boxes. 1 wish it understood, therefore that the spirit of my invention relates to a broad, comprehensive )rinciple upon which the form of apparatus and method of operation for practicing the invention are predicated. In the appended claims, the invention is defined in these broad comprehensive terms and it is contemplated in the practice of the in vention to make such modifications in details of construction of the apparatus and in the method of production as will best adapt the same to the character of the product and as will readily seem to those skilled ing a box to effect foldings of portions thereof, in folding trons, in supporting tape coated on both certain of said pora supply of tlClllGl'SlYQ sides, in drawing the tape forward. in moistenino; and sevcrin 4 1 \i "'3 the same into measured lengths, and disposing the severed portions over the folded portions of the box and in folding other 1 'ntions of the box over the adhesive to offect a joint.

A paper box making machine including in combination, box su 'iporting means interchangeable and adjustable on said machine for boxes of variable sizes means to effect foldings of portions of the boxes, means to deliver adhesive tape relative to said folded portions, means to effect folding; of other portions of the boxes relative to the first folded portions with the adhesive material therebetween, and means acting to effect adhesion between said folded portions and said tape.

8. A paper box making machine including in combination, means for supporting a box to effect foldings of portions thereof, means comprising a series of gear-entrained rollers operable to feed a web of adhesive tape forward, means for actuating the rollers comprising a rack for driving said gear train and a treadle for actuating said rack, means for severing said tape, means for moistening the severed portion and means for delivering said severed portion relative to said folded portions of the boxes, means acting to effect adhesion between said folded portions and said tape.

4. A paperbox making machine including in combination, means for supporting a box to effect foldings of portions thereof, means comprising a series of gear-entrained rollers operable to feed a web of adhesive tape forward, means for actuating the rollers comprising a compound rack operatively connected to different units of said gearing, means for severing said tape, means moistening the severed portion and means to deliver said severed portion relative to said folded portions of the boxes, means acting to effect adhesion between said folded portions and said tape.

A paper box making machine including in combination means for supporting a box to effect foldings of portions thereof, means to position a portion of adhesive tape relative to said folded portions, and means comprising a pressure roller adapted to effect adhesion between said folded portions and said tape.

6. A paper box making machine including in combination, means for supporting a box to eti'ect foidings of portions thereof, neans to position a portion of adhesive tape reiativeto said folded portions and means consisting of a reciproeable frame comprising a pressure roller adapted to act upon said foidable portions of the box to effect aihesion bet men said portions and said tape.

7. A paper box r aking machine including in combination, means for supporting a box [0 effect folding; of portions thereof means to position a portion of adhesive tape i'OlzliliYe to said folded portions, and means comprising a spring-tensioned reciprocable frame and a pressure roiier supported in said frame and adapted to act upon said ifoidabie portions of the box to effect ad hesion between said portions and said tape.

8. A paper box making machine includ means comprising a reeiproeabie fraineeand a springtensioned pressure roller operably supported in said frame and adapted to act.

upon said folda-bie portions of the box to effect adhesion between said portions and said tape.

In testimony whereof, I aiiiii my signature SAMUEL BERGSTEIN. 

